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. 2018 Aug 24;13(8):e0203080. doi: 10.1371/journal.pone.0203080

Fig 2.

Fig 2

Effects of storage temperature at 4°C (■), -18°C (▲), and -80°C (●) on normal germination for P. davidiana seeds stored for up to 48 months with water contents adjusted to 3% (A), 6% (B), 9% (C), 12% (D), 18% (E), 21% (F), or 24% (G) (fresh weight basis). Storage temperature (ST) ***, seed water content (SWC) ***, storage period (SP) ***, ST × SWC ***, ST × SP ***, SWC × SP ***, ST × SWC × SP ***. All values are means of four replicates ± SD (n = 4). *** indicate significant difference at p<0.001.